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General drill rod clamping device used for coal mine drilling machine

A technology for clamping drill pipes and coal mine drilling rigs, which is applied in the direction of drill pipes, drill pipes, and earthwork drilling. Easy operation, fast loading and unloading of drill pipes, and improved automation

Inactive Publication Date: 2012-06-27
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When disassembling the drill pipe, the manual disassembly method is adopted, the drilling efficiency is low, the auxiliary drilling time is long, and the worker's operation is dangerous

Method used

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  • General drill rod clamping device used for coal mine drilling machine
  • General drill rod clamping device used for coal mine drilling machine
  • General drill rod clamping device used for coal mine drilling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The structure of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] In specific implementation, such as figure 1 and figure 2 As shown, a universal drill pipe clamping device for a coal mine drilling rig includes a front end cover 7, a rear end cover 2 and a cylindrical casing 3 fixed between the two, and the casing 3 is provided with a Sliding overall cylindrical slip sleeve 5, in which several slips 6 that can slide in the radial direction are evenly distributed along the circumference of the slip sleeve 5, and the cross section of the side of the slip sleeve 6 facing the slip sleeve 5 is T-shaped and It is slidably clamped and fitted in the T-shaped groove of the inner cavity of the slip sleeve 5, and the mating surface of the T-shaped groove and the slip 6 is arranged obliquely along the axial direction, and the inner surface of the slip 6 is a concave arc surface , the ...

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PUM

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Abstract

The invention discloses a general drill rod clamping device used for a coal mine drilling machine, which comprises construction members, such as a front end cover, a rear end cover, a shell, a slip sleeve, a slip, a clamping cylinder, an elastic resetting mechanism and the like. The device can be used as the chuck or the gripper of the drilling machine so as to solve the problem that the traditional full-hydraulic drilling machine drill rod clamping device used for the mine cannot directly clamp an anomalous drill rod. The drilling machine provided with the clamping device can be used for clamping a common circular drill rod and an anomalous drill rod with a non-circular surface under the condition of replacing no parts, and the the anomalous drill rod can obtain the same use efficacy as that of the common circular drill rod. When the anomalous drill rod is used for drilling holes, the drill rod can conveniently move vertically so as to greatly shorten the auxiliary operation time for using the anomalous drill rod to drill holes and greatly lower the technical requirement for a drilling machine operation worker. Meanwhile, the use safety coefficient of the drilling machine is improved.

Description

technical field [0001] The invention relates to the technical field of coal mine drilling rig equipment, in particular to a universal drill rod clamping device for coal mine drilling rigs. [0002] Background technique [0003] Coal mine drilling rigs are equipment used in coal mines to drill and mine coal. Generally, when targeting ordinary coal seams, round drill pipes are used to drill holes. With the requirements of coal mining, the requirements for drilling in soft coal seams are getting higher and higher. To effectively solve the problem of drilling in soft coal seams, special drill pipes such as wide blade shallow spiral drill pipes or triangular drill pipes are required. The biggest feature of these special drill pipes is the non-circular surface shape, so it is difficult for ordinary clamping devices for clamping ordinary round drill pipes to meet the requirements of use and cannot effectively clamp. [0004] Simultaneously, the existing coal mine drilling rig chu...

Claims

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Application Information

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IPC IPC(8): E21B19/10
Inventor 辛德忠龚宪生王清峰
Owner CHONGQING UNIV
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